16 Animated CSS3 Loaders – LoadLab
Yet another CSS loader collection that provides 16 animated loading indicators/spinners based on CSS3 animations and plain HTML structure.
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Google Inbox Inspired Preloader With Pure JavaScript – Prelodr
Prelodr is a native JavaScript library (also can be used as a jQuery plugin) that helps create a Google Inbox style content preloader with async and chaining support.
Slim AJAX Loading Indicator Library – microbar
microbar is a very small and easy to use JavaScript library for generating a top slim progress bar to indicate the ajax loading status
Multiple Progress Loading Management In Vanilla JavaScript – DOM-wait
DOM-wait is a vanilla JavaScript powered Progress Loader Management to manage complex waiting experiences on web applications.
Simple Lightweight JavaScript SVG Loader Library – Rocket-Loader
Loaderplate is a simple, lightweight javascript library that uses SVG icons to generate an animated loading spinner on a given container.
Google Loaders Redesign In Pure CSS
A pure CSS library that recreates the Google loading indicators (loaders, loading spinners) with pure CSS/CSS3.
Lightweight Slim Javascript Progress Bar – nanobar
A super lightweight progress bar built on top of javascript and CSS3 transitions to create a slim indicator for content loading status.
Minimalist Scroll Progress Indicator In Pure JavaScript – pageScrollIndicator.js
A minimalist page scroll indicator to visualize the scroll position (how much the user has scrolled) in a slim progress bar. Fully customizable via CSS.
Tiny JavaScript Library For Progressive Image Lazy Loading – Progressively
Just another fast, dependency-free JavaScript library used to lazy load images with a progressive blur loading effect as you seen on Medium or Instagram.
Basic Loading Screen For Material Design Lite – material-loading
The material-loading lets you create a fullscreen loading screen for official Material Design Lite framework.